DeskMate Single-Ear Cisco IP/Plantronics Bundle No amp required  connects directly to most Cisco phone models and even your Plantronics amplifier Unparalleled comfort  with a leatherette ear cushion, flexible headband and German design, the DeskMate is the most comfortable headset in the world 4-year full-replacement warranty  the best of ANY headset available Noise-canceling microphone  reduces background noise for your callers Quick disconnect cord  step away from your desk without removing your DeskMate